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Fill in the blanks In sponges, fertili...

Fill in the blanks
In sponges, fertilisation is a_____ and development is b_____having a larval stage which is morphologically c______from the adult.

A

a-Internal,b-Indirect, c-distinct

B

a-Internal, b-Indirect, c-similar

C

a-External, b-Direct, c-distinct

D

a-External, b-Indirect, c-similar

Text Solution

Verified by Experts

The correct Answer is:
A
In Sponges, fertilisation is internal and development is indirect having a larval stage which is morphologically distinct from the adult.
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A2Z-ANIMAL KINGDOM-Section A : Topicwise Questions Topic 2 : Phylum-porifera , Coelenterata (cnidaria) , Ctenophora
  1. Match the column I and II, and choose the correct combination from the...

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  2. Correct flow of water current in sponges is

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  3. If '1' represents the extracellular digestion, '2' represent the intra...

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  4. Matcht he column I, II and III and choose the correct combination from...

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  5. Fill in the blanks In sponges, fertilisation is a and development is...

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  6. Read the following statements: (a). Polyp is sessile and cylindrical...

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  7. Cnidoblasts are used for

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  8. Match the columns I and II, and chose the correct combination from the...

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  9. cold blooded animals are also called

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  10. Dipholoblastic, radially symmetrical, marine animal showing biolumines...

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  11. In porifera, the simplest canal system is

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  12. Looping and sommersaulting are the modes of locomotion found in

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  13. For life cycle of Obelia, most appropriate term used is

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  14. Given below are types of cells present in some animals. Each one is sp...

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  15. match the column I, II and III and choose the correct combination from...

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  16. Bioluminescent property is well marked in

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  17. In sea-walnuts and comb-jellies the fertilization is

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  18. Metagenesis is seen in

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  19. Fill I the blanks: Sponges reproduces aby fragmentation and bby form...

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  20. Corals are the member of

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